COVID-19 Tracking in the USA from JHU (Johns Hopkins University) Data located at https://github.com/CSSEGISandData/COVID-19
Issues with downloading the CSV data via ssh can be corrected by installing/updating the certifi package
python3 -m pip install --upgrade certifi
As more data is available, it may be necessary to update the initial conditions p0 for the logistic and exponential model in order for the solver to properly calculate a fit for each model.